際際滷

際際滷Share a Scribd company logo
Citochine
e Sindrome Metabolica
Luigi Landolfi
Criteri per la diagnosi di Sindrome Metabolica
Obesity Is Caused by Long-Term Positive
Energy Balance
FatFat
StoresStores
Balancing Intake vs Expenditure
Changes in the environment
Energy dense food overabundant
Opportunity for expenditure reduced
Energy
expenditure
Energy
intake
Leptin
Insulin
(+)
(+)
(+)
(-)
(-)
Fat stores
Ghrelin
Others (?)
Satiety Signals from the
Gut: CCK, GLP-1, PYY
Physiology: Central Pathways
 Leptin
 留-MSH
 CART
 GLP-1
 C-NTF
 CRH/Urocortin
 Neuromedin U
 Serotonin
 CCK
 Insulin
 Bombesin
 Calcitonin
 Enterostatin
 TRH
 IL-1
 Neurotensin
 Oxytocin
 Vasopressin
 Neuropeptide Y
 MCH
 AGRP
 Orexin A, B (Hypocretin 1,3)
 Galanin
 Dynomorphin
 Norepinephrine
 -endorphin
Anorexigenic Orexigenic
Important to know that complex regulation
exists, do not need to know individual
factors. Identify Leptin as important.
Genetic bases of obesity
Genetic bases of obesity
 Il GENE FTO: FTO (Fat Mass- And Obesity-
Associated Gene) la sua espressione genica 竪 elevata in
sede ipotalamica e il livello di questa espressione 竪
regolata dallintroito calorico. Il gene FTO ha un alto
polimorfismo genico ma con alcune varianti (alleli)
correlate al fenotipo dellobesit.
 Gene IRX3 : 竪 influenzato dalle mutazioni di FTO ;
controlla la percentuale di grasso corporeo agendo
sullipotamano
 Qualunque associazione tra FTO e obesit appare
mediata da IRX3
Genetic bases of obesity
Le forme a eredit mendeliana non sindromica pi湛
studiate sono essenzialmente tre:
 Deficit del recettore della melanocortina-4
(MC4R)
 Deficit congenito di leptina (LEP)
 Deficit del recettore della leptina (LEPR)
Endocrine Causes of Obesity
Hypothalamic injury or tumor
Cushings syndrome
Hypothyroidism
Hypogonadism
Growth hormone deficiency
Polycystic ovarian syndrome
Manifestation of obesity versus cause
Adiponectin
Angiotensinogen
Resistin
IL-6
TNF-留
Leptin
other
Adipose Tissue: An Endocrine OrganAdipose Tissue: An Endocrine Organ
CC:BY 3.0
BY: Regents of the
University of Michigan
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Obesity and cytokinesObesity and cytokines
Cytokines and metabolic syndrome
TNF留 ?
Cytokines and metabolic syndrome
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Riduce luptake dei FFA e
la sintesi dei trigliceridi (lipogenesi)
Incrementa la lipolisi
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Induce Insulinoresistenza
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Induce Insulinoresistenza
Regola la produzione di
leptina
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Induce Insulinoresistenza
> Livelli di PAI-1
adipocitari e circolanti
plasminogen activator inhibitor PAI-1.
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Induce Insulinoresistenza
Potente inibitore della
differenziazione degli
adipociti
Il Ruolo del TNF  留 nel metabolismo degli adipocitiIl Ruolo del TNF  留 nel metabolismo degli adipociti
Modula il metabolismo lipidico :
Induce Insulinoresistenza
> lapoptosi nel tessuto
adiposo
Obesit Infiammazione e InsulinoresistenzaObesit Infiammazione e Insulinoresistenza
Adipokine expression and secretion by adipose tissue in lean subjects
Obesit Infiammazione e InsulinoresistenzaObesit Infiammazione e Insulinoresistenza
Obese subjects
Cytokines and metabolic syndrome
Insulin Resistance
Mortality / Morbidity
Cellule
schiumose
Stria
Lipidica
Lesione
Intermedia Ateroma
Lesione
complicata
Expression of TNF-留 mRNA in
adipose tissue from lean and obese
female human subjects .
Cytokines and metabolic syndrome
INFIAMMAZIONE
Adipose tissue inflammation The increase in fat cell size is accompanied
by the increased infiltration of immune cells
including macrophages (arrows).
Lipidi e mediatori dellinfiammazione : integrazione delle risposte
metaboliche e immunitarie in adipociti e macrofagi attraverso
meccanismi condivisi
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Time course of hypothalamic inflammation after the onset of HFD feeding.
Radiologic evidence of gliosis in the MBH of obese humans
Cytokines and metabolic syndrome
Implications and future directions
This finding advances knowledge about the pathological changes affecting
the central nervous system during the development of metabolic syndrome,
and provides support for the idea that hypothalamic neuropathy contributes
to the condition.
TNF  留 e insulinoresistenza in obesi con DM 2TNF  留 e insulinoresistenza in obesi con DM 2
TNF  留 e insulinoresistenza in obesi con DM 2TNF  留 e insulinoresistenza in obesi con DM 2
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Ipoglicemia come nuovo fattore di rischio cardiovascolare
Lipoglicemia attiva gli stessi meccanismi indotti dalliperglicemia
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Date of download: 11/16/2014
Copyright 息 American College of Chest Physicians. All rights reserved.
From: Expression of the Atypical Chemokine Receptor D6 in Human Alveolar Macrophages in
COPDD6 Upregulation in COPD
Chest. 2013;143(1):98-106. doi:10.1378/chest.11-3220
A-D, When all subjects were considered as a group, D6 expression was positively correlated with the markers of
immune activation: CD8+
cells infiltrating the alveolar walls (A), IL-32 (B), and TNF- (C) and negatively correlated with留
lung function parameters (FEV1/FVC) (D). E, F, When stratified according to the expression of D6 (above or below the
median value), patients with COPD with high D6 levels showed levels of IL-32 and TNF- significantly higher than留
patients with COPD with low D6 levels in which the levels of these cytokines were scattered. P values (Mann-Whitney U
test): *P < .05, **P = .01. TNF = tumor necrosis factor.
Figure Legend:
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
Comparison of serum NO, TNF-留, IL-1硫, sIL-2R, IL-6 and IL-8 levels
with grades of retinopathy in patients with diabetes mellitus
S Doganay, C Evereklioglu, H Er, Y T端rk旦z, A Sevin巽, N Mehmet and H avli
Regular Physical Exercise as a Strategy to Improve Antioxidant and Anti-
Inflammatory Status: Benefits in Type 2 DiabetesMellitus
Adiponectina
TNF-留
CRP
IL-6
Cytokines and metabolic syndrome
Cytokines and metabolic syndrome
 TNF  留
 IL  6
 IL  18
 CRP

More Related Content

Cytokines and metabolic syndrome

  • 2. Criteri per la diagnosi di Sindrome Metabolica
  • 3. Obesity Is Caused by Long-Term Positive Energy Balance FatFat StoresStores
  • 4. Balancing Intake vs Expenditure Changes in the environment Energy dense food overabundant Opportunity for expenditure reduced
  • 6. Physiology: Central Pathways Leptin 留-MSH CART GLP-1 C-NTF CRH/Urocortin Neuromedin U Serotonin CCK Insulin Bombesin Calcitonin Enterostatin TRH IL-1 Neurotensin Oxytocin Vasopressin Neuropeptide Y MCH AGRP Orexin A, B (Hypocretin 1,3) Galanin Dynomorphin Norepinephrine -endorphin Anorexigenic Orexigenic Important to know that complex regulation exists, do not need to know individual factors. Identify Leptin as important.
  • 8. Genetic bases of obesity Il GENE FTO: FTO (Fat Mass- And Obesity- Associated Gene) la sua espressione genica 竪 elevata in sede ipotalamica e il livello di questa espressione 竪 regolata dallintroito calorico. Il gene FTO ha un alto polimorfismo genico ma con alcune varianti (alleli) correlate al fenotipo dellobesit. Gene IRX3 : 竪 influenzato dalle mutazioni di FTO ; controlla la percentuale di grasso corporeo agendo sullipotamano Qualunque associazione tra FTO e obesit appare mediata da IRX3
  • 9. Genetic bases of obesity Le forme a eredit mendeliana non sindromica pi湛 studiate sono essenzialmente tre: Deficit del recettore della melanocortina-4 (MC4R) Deficit congenito di leptina (LEP) Deficit del recettore della leptina (LEPR)
  • 10. Endocrine Causes of Obesity Hypothalamic injury or tumor Cushings syndrome Hypothyroidism Hypogonadism Growth hormone deficiency Polycystic ovarian syndrome Manifestation of obesity versus cause
  • 11. Adiponectin Angiotensinogen Resistin IL-6 TNF-留 Leptin other Adipose Tissue: An Endocrine OrganAdipose Tissue: An Endocrine Organ CC:BY 3.0 BY: Regents of the University of Michigan
  • 19. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Riduce luptake dei FFA e la sintesi dei trigliceridi (lipogenesi) Incrementa la lipolisi
  • 20. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Induce Insulinoresistenza
  • 21. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Induce Insulinoresistenza Regola la produzione di leptina
  • 22. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Induce Insulinoresistenza > Livelli di PAI-1 adipocitari e circolanti plasminogen activator inhibitor PAI-1.
  • 23. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Induce Insulinoresistenza Potente inibitore della differenziazione degli adipociti
  • 24. Il Ruolo del TNF 留 nel metabolismo degli adipocitiIl Ruolo del TNF 留 nel metabolismo degli adipociti Modula il metabolismo lipidico : Induce Insulinoresistenza > lapoptosi nel tessuto adiposo
  • 25. Obesit Infiammazione e InsulinoresistenzaObesit Infiammazione e Insulinoresistenza Adipokine expression and secretion by adipose tissue in lean subjects
  • 26. Obesit Infiammazione e InsulinoresistenzaObesit Infiammazione e Insulinoresistenza Obese subjects
  • 30. Expression of TNF-留 mRNA in adipose tissue from lean and obese female human subjects .
  • 32. INFIAMMAZIONE Adipose tissue inflammation The increase in fat cell size is accompanied by the increased infiltration of immune cells including macrophages (arrows).
  • 33. Lipidi e mediatori dellinfiammazione : integrazione delle risposte metaboliche e immunitarie in adipociti e macrofagi attraverso meccanismi condivisi
  • 36. Time course of hypothalamic inflammation after the onset of HFD feeding.
  • 37. Radiologic evidence of gliosis in the MBH of obese humans
  • 39. Implications and future directions This finding advances knowledge about the pathological changes affecting the central nervous system during the development of metabolic syndrome, and provides support for the idea that hypothalamic neuropathy contributes to the condition.
  • 40. TNF 留 e insulinoresistenza in obesi con DM 2TNF 留 e insulinoresistenza in obesi con DM 2
  • 41. TNF 留 e insulinoresistenza in obesi con DM 2TNF 留 e insulinoresistenza in obesi con DM 2
  • 58. Ipoglicemia come nuovo fattore di rischio cardiovascolare Lipoglicemia attiva gli stessi meccanismi indotti dalliperglicemia
  • 65. Date of download: 11/16/2014 Copyright 息 American College of Chest Physicians. All rights reserved. From: Expression of the Atypical Chemokine Receptor D6 in Human Alveolar Macrophages in COPDD6 Upregulation in COPD Chest. 2013;143(1):98-106. doi:10.1378/chest.11-3220 A-D, When all subjects were considered as a group, D6 expression was positively correlated with the markers of immune activation: CD8+ cells infiltrating the alveolar walls (A), IL-32 (B), and TNF- (C) and negatively correlated with留 lung function parameters (FEV1/FVC) (D). E, F, When stratified according to the expression of D6 (above or below the median value), patients with COPD with high D6 levels showed levels of IL-32 and TNF- significantly higher than留 patients with COPD with low D6 levels in which the levels of these cytokines were scattered. P values (Mann-Whitney U test): *P < .05, **P = .01. TNF = tumor necrosis factor. Figure Legend:
  • 73. Comparison of serum NO, TNF-留, IL-1硫, sIL-2R, IL-6 and IL-8 levels with grades of retinopathy in patients with diabetes mellitus S Doganay, C Evereklioglu, H Er, Y T端rk旦z, A Sevin巽, N Mehmet and H avli
  • 74. Regular Physical Exercise as a Strategy to Improve Antioxidant and Anti- Inflammatory Status: Benefits in Type 2 DiabetesMellitus Adiponectina TNF-留 CRP IL-6
  • 77. TNF 留 IL 6 IL 18 CRP

Editor's Notes

  • #4: Obesity is caused by long-term positive energy balance Obesity is caused by ingesting more energy than is expended over a long period of time. The excess calories that are consumed lead to an accumulation of body fat either by being stored as fat or preventing the mobilization and oxidation of endogenous fat. In general, ingesting 3500 kcal more (or less) than expended will lead to a gain (or loss) of approximately 1 lb of fat. Genetic factors may influence the amount of weight gained with overfeeding. In one study, weight gain varied greatly among 12 monozygotic twin pairs who were chronically overfed 1000 kcal/d [1]. However, weight gains were very similar within each member of a twin pair. In another study, body fat gain after 8 weeks of overfeeding also varied among study subjects but was inversely related to changes in non-volitional energy expenditure, such as fidgeting, which may be determined genetically [2]. Bouchard C, Tremblay A, Despres JP, et al. The response to long-term overfeeding in identical twins. N Engl J Med 1990;322:1477-1482. Levine JA, Eberhardt NL, Jensen MD. Role of nonexercise activity thermogenesis in resistance to fat gain in humans. Science 1999;282:212-214.
  • #30: Dallaccumulo delle cellule schiumose nellintima della parte arteriosa lo sviluppo della placca aterosclerotica si realizza nel tempo. La complicazione della placca come rottura, trombosi per esempio 竪 rapida. La sindrome coronarica acuta e le sue conseguenze si scatenano in relazione a fattori che vengono indicati come triggers: per esempio le ore dellalba, temperature ambientali estreme, emozioni intense acute, esercizi fisici inusuali, pasti copiosi ricchi in grassi, sospensione farmacologica delle statine. E anche linfezione influenzale.