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Hentgen V, Despert V, Leprêtre AC, Cuisset L, Chevrant-Breton J, Jégo P, Chalès G, Gall EL, Delpech M, Grateau G. Intrafamilial variable phenotypic expression of a CIAS1 mutation: from Muckle-Wells to chronic infantile neurological cutaneous and articular syndrome. J Rheumatol 2005; 32:747-51. [PMID: 15801036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Among hereditary inflammatory disorders, Muckle-Wells syndrome, chronic infantile neurological cutaneous and articular syndrome (CINCA), and familial cold urticaria have recently been shown to be caused by dominantly inherited mutations in the CIAS1 gene. Reports suggest that these 3 diseases result from distinct missense mutations, with very few overlapping symptoms. We describe a French family presenting an intrafamilial overlapping clinical phenotype of CINCA and Muckle-Wells syndrome, caused by a mutation in CIAS1 gene. Clinical and genetic observations suggest that Muckle-Wells syndrome, CINCA, and familial cold urticaria are various phenotypic expressions of the same disease.
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Cazalets C, Cador B, Rolland Y, Decaux O, Guggenbulh P, Chaperon C, Jégo P, Grosbois B. Exploration de la microcirculation pulpaire par écho-doppler digital chez des patients présentant une maladie de Raynaud ou une sclérodermie. ACTA ACUST UNITED AC 2004; 29:12-20. [PMID: 15094661 DOI: 10.1016/s0398-0499(04)96707-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Raynaud's phenomenon (RP) is a frequent vascular paroxysmal syndrome of the extremities. Generally benign, the condition is called Raynaud's disease (RD), which may reveal a connective tIssue disease, particularly systemic sclerosis (SS). We evaluated digital blood flow in patients with RD and SS using color Doppler ultrasound. PATIENTS AND METHODS Ultrasound examination was performed with a newly developed multi-D linear array transducer (VFX 13-5 Siemens), which allows better resolution. We first measured the diameters of the digital arteries (appendix 1) then epidermal, dermal, and hypodermal thickness for each patient (appendix 3) and performed a qualitative and quantitative analysis of pulpar microcirculation (appendix 4 & 5). All measures were made at 25 degrees C, 45 degrees C, 11 degrees C and after recovery. Thirty-three patients were included: 14 with primary RD and 19 with SS as assessed by American College of Rheumatology criteria. RESULTS The diameters of the digital arteries showed significant discrepancies allowed to distinguish primary RP from SS. At 11 degrees C, diameters were 0.6 +/- 0.2 mm for primary RP versus 0.2 +/- 0.3 mm for SS on lateral digital arteries (LDA) [p=0.005]; 0.7 +/- 0.2 mm for primary RP versus 0.4 +/- 0.3 mm for SS on medial digital arteries (MDA) [p=0.004]. After recovery, these diameters were respectively 1 +/- 0.2 mm versus 0.5 +/- 0.4 mm for LDA [p=0.000] and 1 +/- 0.2 mm versus 0.6 +/- 0.3 mm for MDA [p=0.000] (tables 1, 2, 3, 4). Similarly, pulpar vascularization was significantly higher in primary RP than in SS (tables 6, 7, 8). No difference was found in skin thickness nor in the epidermal aspect between the two groups (table 5). CONCLUSION Color Doppler ultrasound shows morphological and dynamic differences between RD and SS.
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Cazalets C, Rollande Y, Cador B, Decaux O, Guggenbuhl P, Chaperon J, Jégo P, Grosbois B. Exploration de la microc!rculation pulpaire par échodopplerdigital chez des patients présentant une maladie de Raynaud et une sclérodermie systémique. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80338-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Decaux O, Cador B, Dufour T, Jégo P, Cazalets C, Laurat E, Grosbois B. [Nonsurgical treatment of chronic subdural hematoma with steroids: two case reports]. Rev Med Interne 2002; 23:788-91. [PMID: 12378833 DOI: 10.1016/s0248-8663(02)00676-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Hemorrhages beneath the dura define a subdural hematoma. EXEGESIS The course of chronic subdural hematoma may be asymptomatic for many months before diagnosis. Recovery is observed in 80% of patients after surgery. We report two cases of chronic subdural hematoma successfully treated with steroids. CONCLUSION Steroids can be an alternative treatment of subdural hematoma, specially in elderly or alcoholic patients.
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Cador-Rousseau B, Cazalets C, Decaux O, Sost G, Laurat E, Jégo P, Grosbois B. [Susac's syndrome in post-partum]. Rev Med Interne 2002; 23:667-8. [PMID: 12162223 DOI: 10.1016/s0248-8663(02)00630-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cazalets C, Rolland Y, Jégo P, Guggenbuhl P, Grosbois B. Intérêt de l'écho doppler digital dans le diagnostic étiologique des phénomènes de Raynaud. Rev Med Interne 2002. [DOI: 10.1016/s0248-8663(02)80164-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jégo P, Musellec E, Levasseur G, Simaga F, Riou F, Grosbois B. Enquête sur la gestion d'une corticothérapie prolongée en médecine générale. Rev Med Interne 2002. [DOI: 10.1016/s0248-8663(02)80179-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sost G, Noyon V, Cador B, Jégo P, Grosbois B. [Atrophic polychondritis and aseptic meningoencephalitis]. Rev Med Interne 2001; 22:673-5. [PMID: 11508165 DOI: 10.1016/s0248-8663(01)00408-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chevalet P, Barrier JH, Glémarec J, el Kouri D, Hamidou M, de Wazières B, Duhamel E, Jégo P, Maugars Y, Planchon B, Rodat O. [Horton's disease in elderly patients aged over 75: clinical course, complications of corticotherapy. Comparative study of 164 patients. Towards a reduced initial dose]. Rev Med Interne 2001; 22:624-30. [PMID: 11508155 DOI: 10.1016/s0248-8663(01)00399-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Our study compares clinical and therapeutic courses (corticosteroid response, corticosteroid amount, complications) in people with giant cell arteritis before and over 75 years, during the first year of treatment. METHODS A series of 164 patients was retrospectively analysed (mean age: 73.3 years) among the two subgroups: before 75 and over 75 years. Patient received (monitoring of reduction in the corticosteroid dosage) a 240 mg intravenous bolus of methylprednisolone followed by 0.5 or 0.7 mg/kg/d of prednisone, or 0.7 mg/kg/d of prednisone without the bolus. RESULTS Corticosteroid response was identical for the two groups, before and over 75 (patients with corticoresistance: 15% vs 11.4%; NS) and giant cell arteritis-related complications were equivalent (n = 2 vs n = 2; NS). Corticosteroid load was slightly lower in the elderly group (cumulative dose of corticosteroids during the first year of treatment 5.2 g vs 5.8 g; P = 0.03). Patients with rheumatic side effects (collapses of vertebral bodies, mainly) were more frequent in the elderly group (15.5% vs 4.3%; P = 0.01), in spite of a limited mean follow-up period (10.7 months). CONCLUSION Even if steroid response was identical in the therapeutic course of giant cell arteritis, rheumatic side effects appeared more frequent in the elderly group (over 75 years). In order to obtain a corticosteroid-sparing effect, new studies are necessary to evaluate a reduced initial dosage of corticosteroids.
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Cador B, Jégo P, Lauvin R, Laurat E, Cazalets C, Grosbois B. La carence en vitamine C dans un service de médecine interne. Rev Med Interne 2001. [DOI: 10.1016/s0248-8663(01)83425-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Cazalets C, Laurat E, Cador B, Jégo P, Grosbois B. Artérite au cannabis : deux observations. Rev Med Interne 2001. [DOI: 10.1016/s0248-8663(01)83582-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sost G, Cador B, Noyon V, Jégo P, Grosbois B. Polychondrite atrophiante et méningoencéphalite aseptique. Rev Med Interne 2000. [DOI: 10.1016/s0248-8663(00)90151-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jégo P, Resche S, Karacatsanis C, Le Strat A, Bouget J, Minet J, Grosbois B. [Erysipelas. A retrospective series of 92 patients in a department of internal medicine]. ANNALES DE MEDECINE INTERNE 2000; 151:3-9. [PMID: 10761557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Erysipleas, also known as Saint Anthony's fire, is an acute infection of the skin caused, in most of cases, by group A streptococci. In the past, the most common site of involvement was the face and, in the pre-antibiotic era, mortality was high. In this retrospective study, we highlight the clinical and bacteriological features and report follow-up in 92 patients hospitalized in an internal medicine unit between 1st March 1992 and 31st December 1996 for 94 episodes of erysipelas. The involvement of the lower limbs predominated as involvement of the face is becoming very rare. Streptococci from others groups and Staphylococcus aureus have been implicated on occasions. Recovery is usual even if this infection may greatly weaken these often fragilized patients. In this paper, antibiotic treatment as well as the place of anticoagulants and Doppler ultrasound are discussed. Hospitalization is often necessary but it must not be systematic.
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Jégo P, Le Strat A, Camus C, Gatel A, Grosbois B, Leblay R. [Cryptococcal meningitis associated with chronic lymphocytic leukemia: a case report. Review of the literature]. Rev Med Interne 2000; 21:83-5. [PMID: 10685458 DOI: 10.1016/s0248-8663(00)87232-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The authors report the occurrence of a cryptococcal meningitis in a patient treated by corticosteroids and polychemotherapy for a chronic lymphocytic leukemia. EXEGESIS A 63-year-old man with chronic lymphocytic leukemia was sent to hospital because of impaired condition with fever. Neurological disorders appeared. Cryptococcal meningitis was diagnosed. Under treatment, the outcome was favorable. CONCLUSION This paper highlights the feature of this infection most likely underestimated in HIV-seronegative patients and the need to a priori consider this diagnosis.
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Laurat E, Jégo P, Sébillot M, Caulet-Maugendre S, Seigneuret E, Grosbois B. L'amylose: une cause de compression médullaire à ne pas méconnaître au cours du myélome. Rev Med Interne 1999. [DOI: 10.1016/s0248-8663(99)80358-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jégo P, Cador B, Laurent M, Gatel A, Grosbois B, Leblay R. Prise en charge des grossesses en médecine interne. Rev Med Interne 1999. [DOI: 10.1016/s0248-8663(00)87635-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chevalet P, Pottier P, Planchon B, Pottier MA, Magadur G, Hamidou M, Dupond JL, De Wazières B, Dien G, Duhamel E, Grosbois B, Jégo P, Le Strat A, Letellier P, Agron L, Jeandel C, Barrier JH. Protocole SNFMI multicentrique sur l'utilisation des bolus IV de méthylprednisolone à la période d'attaque de la maladie de Horton simple: résultats définitifs à 1 an (164 patients). Rev Med Interne 1998. [DOI: 10.1016/s0248-8663(98)80125-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jégo P, Breban S, Sébillot M, Bracq J, Leblay R, Grosbois B. Quelles sont les particularités du myélome multiple du sujet âgé? Rev Med Interne 1998. [DOI: 10.1016/s0248-8663(98)90116-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jégo P, Le Strat A, Girard L, Sébillot M, Grosbois B, Le Blay R, Drénou B. Paroxysmal nocturnal hemoglobinuria: efficacy of prolonged treatment with granulocyte colony-stimulating factor. Blood 1997; 90:2841-3. [PMID: 9326254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Jégo P, Chenoufi N, Loréal O, Morel I, Pasdeloup N, Abdallah MA, Brissot P, Lescoat G. Inhibition of iron toxicity in human hepatocyte cultures by pyoverdins Pa A and Pf, the peptidic siderophores of Pseudomonas aeruginosa and fluorescens. LIVER 1997; 17:70-5. [PMID: 9138275 DOI: 10.1111/j.1600-0676.1997.tb00783.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The protective effect of pyoverdins Pa A and Pf, peptidic siderophores secreted respectively by Pseudomonas aeruginosa and fluorescens, was studied in primary cultures of human hepatocytes exposed to iron (50 or 100 microM of iron-citrate). AST, ALT and MDA releases were measured as indexes of cytotoxicity. In order to demonstrate that these chelators were able to decrease iron uptake or increase iron release from the hepatocytes, labelled cells were obtained by maintaining the cultures in the presence of 1 microM 55Fe ferric chloride plus 50 microM iron citrate. One day after iron treatment, an increase in AST, ALT and MDA release was observed with 50 or 100 microM of iron citrate; it appeared that the concentrations 50 and 100 microM of iron were highly toxic for human hepatocytes. In the presence of 50 or 100 microM of iron, the addition of 50 or 100 microM of Pa A or Pf was effective to inhibit the increase observed in the enzyme leakage and the MDA production resulting from iron exposure. In human hepatocytes cultured for 1 day in the presence of 1 microM 55Fe-50 microM iron citrate plus 50 or 100 microM Pa A or Pf, a net decrease of iron uptake by the cells was observed, as demonstrated by the low intracellular iron level. When the hepatocytes were cultured for 1 day in the presence of 1 microM 55Fe-50 microM iron citrate and then for a further day in the presence of 50 or 100 microM Pa A or Pf without additional iron, the chelators increased the extracellular iron level, indicating their iron release from the loaded cells; however, the effects of Pa A and Pf on iron release did not differ significantly. In conclusion, iron loading achieved by adding iron citrate to the culture medium is highly toxic for human hepatocytes. Pyoverdins Pa A and Pf are effective in protecting human hepatocytes against the toxic effect of iron by both decreasing the uptake of the metal and increasing its release from the loaded cells.
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Jégo P, Rolland Y, Girard L, Le Strat A, Grosbois B, Leblay R. [An echographic discovery]. Rev Med Interne 1997; 18:336-7. [PMID: 9161564 DOI: 10.1016/s0248-8663(97)84022-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Grosbois B, Jégo P, de Rosa H, Ruelland A, Lancien G, Gallou G, Leblay R. [Triclonal gammopathy and malignant immunoproliferative syndrome]. Rev Med Interne 1997; 18:470-3. [PMID: 9247046 DOI: 10.1016/s0248-8663(97)80618-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Three distinct monoclonal gammopathies were identified in the serum of a 79 year-old man. In 1972 he presented with Waldenström's macroglobulinemia IgM Kappa. Twenty years later multiple myeloma was diagnoses. Serum protein electrophoresis performed at this time showed three monoclonal bands. Immunofixation identified these bands as monoclonal IgM kappa, IgG kappa and IgA kappa. Twenty-six cases of triclonal gammopathies were previously reported. Sixteen cases were associated with malignant immuno-proliferative diseases (non-hodgkin lymphoma, Waldenström's macroglobulinemia, multiple myeloma); five cases with non-hematologic diseases; three cases were of undetermined significance. The origin of three distinct monoclonal proteins may derive from three unrelated clones or alternatively from a single clone in which an isotype switch has occurred.
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Jégo P, Pistorius M, Planchon B. Place de la pléthysmographie digitale dans la détection précoce d'une sclérodermie chez les patients présentant un phénomène de Raynaud. Rev Med Interne 1996. [DOI: 10.1016/s0248-8663(97)80942-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Navas JM, Anglade I, Bailhache T, Pakdel F, Breton B, Jégo P, Kah O. Do gonadotrophin-releasing hormone neurons express estrogen receptors in the rainbow trout? A double immunohistochemical study. J Comp Neurol 1995; 363:461-74. [PMID: 8847411 DOI: 10.1002/cne.903630309] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A double immunocytochemical procedure, with two different chromogens, was used to compare the respective distributions of estrogen receptor-immunoreactive cells and gonadotrophin-releasing hormone-immunoreactive neurons on the same sections of the brains of adult male and female rainbow trout (Oncorhynchus mykiss). Estrogen receptor-immunoreactive cells were observed in the ventral and lateral telencephalon, the preoptic region, the mediobasal hypothalamus, and the ventromedial thalamic nucleus. Gonadotrophin-releasing hormone-immunoreactive perikarya were detected in the olfactory bulbs, the ventral telencephalon, the preoptic area, and the mediobasal hypothalamus. Double-staining studies showed that, although some estrogen receptor-positive cells were in close proximity to gonadotrophin-releasing hormone-immunoreactive perikarya, careful examination of 550 gonadotrophin-releasing hormone-positive cells from five adult females and two adult males failed to demonstrate any evidence that gonadotrophin-releasing hormone neurons coexpress estrogen receptor in the brain of the rainbow trout. The present study provides, for the first time in teleosts, morphological evidence that gonadotrophin-releasing hormone neurons do not represent major direct targets for estradiol, suggesting that the positive feedback effects of estradiol onto the gonadotrophin-releasing hormone system are likely to be conveyed via other cell populations.
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Girard L, Pron B, Jégo P, Le Strat A, Grosbois B, Leblay R. Confirmation diagnostique d'une maladie de Whipple par PCR. Rev Med Interne 1995. [DOI: 10.1016/0248-8663(96)86755-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Grosbois B, Mary JY, Michaux JL, Jégo P, Pollet JP, Azaïs I, Goupille P, Bernard JF, Philippe P, Monconduit M. Comparaison de l'association melphalan séquentiel ou continu, interféron alpha-2a et prednisone dans le traitement du myélome multiple. Rev Med Interne 1994. [DOI: 10.1016/s0248-8663(05)82607-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Henry Y, Sève B, Colléaux Y, Ganier P, Saligaut C, Jégo P. Interactive effects of dietary levels of tryptophan and protein on voluntary feed intake and growth performance in pigs, in relation to plasma free amino acids and hypothalamic serotonin. J Anim Sci 1992; 70:1873-87. [PMID: 1634412 DOI: 10.2527/1992.7061873x] [Citation(s) in RCA: 119] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The effects of dietary level of tryptophan (TRP) and CP content and composition on voluntary feed intake, growth performance, and carcass characteristics in finishing pigs were studied in two experiments, with an equal number of females and castrated males. In Exp. 1, involving 120 Large White pigs from 44 to 99 kg BW with ad libitum access to feed, six treatments were compared according to a 2 x 3 factorial arrangement: 1) two levels of TRP (.09 and .13%), suboptimal and optimal for growth, respectively, 2) three types of CP supply (a 12.5% CP diet based on corn-soybean meal, and adequately balanced for essential amino acids [EAA] other than TRP; 15.7% CP diet with additional protein from corn gluten meal; 16.2% CP diet with additional nonessential amino acids [NEAA, in the form of L-glutamic acid.HCl and glycine], and the same levels of EAA as in the 12.5% CP diet. In Exp. 2, including four of the six previous factorial combinations (.09 and .13% TRP, 12.3 and 15.8% CP with additional protein), 32 pigs of 50-kg initial BW were used during 21 d, and further observations on meat quality characteristics, plasma free amino acid levels, and serotonin concentrations in the posterior hypothalamus were made. The major observed effects were interactions of different magnitude according to sex between TRP level and the amount and the composition of additional CP. At the suboptimal level of .09% TRP, the increase in protein content severely decreased daily feed intake and growth compared with the .13% level, especially in females. Conversely, the addition of NEAA at both TRP levels had little effect on daily feed intake and growth. Deficiency of TRP exerted a significant increase of pH in adductor femoris and semimembranosus muscles measured 45 min and 24 h postmortem, but only in females. Voluntary feed intake, as affected by dietary TRP and CP levels, was linearly related with concomitant changes in TRP to large neutral amino acids (TRP:LNAA) ratio both in feed and in plasma, which in turn was directly associated to hypothalamic serotonin concentration. It was concluded that an overly low concentration of serotonin in the hypothalamus, especially in females, as a result of TRP:LNAA imbalance, could be involved in the reduction of voluntary feed intake.
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Lescoat G, Jégo P, Maniey J. [Influence of sex hormones on the response intensity of the adrenal-hypothalamo-hypophyseal system to an emotional agression in rats]. JOURNAL DE PHYSIOLOGIE 1971; 63:69A-70A. [PMID: 5561560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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