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Jin HL, Hu CZ, Gu JJ, Xu QH. [The relationship between the calcaneus density and the degree of inflammation in patients with generalized aggressive periodontitis]. Shanghai Kou Qiang Yi Xue 2005; 14:449-51. [PMID: 16288318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
PURPOSE To evaluate the relationship between the calcaneus density and the degree of inflammation in patients with generalized aggressive periodontitis. METHODS Thirty one volunteers with healthy periodontium (as control group) and 38 patients with generalized aggressive periodontitis (as experimental group) were involved in this study. The average ages of the two groups were 27 and 23 years respectively. The clinical periodontal indexes and panoramic films were measured first. And the broadband ultrasonic attenuation(BUA) and T-score of the calcaneus were then determined using ultrasonic bone densitometer. SAS6.12 software package was used to analyse the data obtained. RESULTS The BUA values of the two groups were 62.76+/-4.61 and 70.47+/-4.41 respectively, the BUA value of the experimental group was significantly lower than that of the control group (P<0.001). Moreover, T-score was different between the two groups and the score in the experimental group was significantly lower than that in the control (P<0.001). CONCLUSIONS The BUA and T-score in patients with generalized aggressive periodontitis were significantly lower than that in the controls with healthy periodontium, which indicated that patients with generalized aggressive periodontitis had overall bone density decrease.
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Affiliation(s)
- Hong-lai Jin
- Department of Oral Medicine, School of Stomatology, Ninth People's Hospital, Shanghai Jiaotong University, China.
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Hu CZ, Jin HL, Liang JP, Chu M, Guo JZ, Lu Z, Sheng QP, Cai ZW. [Analysis for clinical effect of a rinse containing cetylpyridinium chloride in treatment of gingivitis and periodontitis]. Shanghai Kou Qiang Yi Xue 2003; 12:414-8. [PMID: 14966578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
OBJECTIVE To investigate the clinical effect of a 0.1% cetylpyridinium chloride(CPC) rinse on the treatment of gingivitis and periodontitis. METHODS A multicenter, randomized, parallel group trial was conducted. The eligible patients were divided randomly into two groups. Subjects were assessed at the beginning and the end of a two-week period during which they rinsed with 0.1% CPC or complex hibitane in addition to their usual oral hygiene procedures. The variation of PLI, SBI, GI, PD, pain, halitosis and adverse effects were observed before and after investigation. RESULTS After 14 days of treatment, in the CPC group, the decreasing rate of PLI was 63.0%, the effective rate for gingivitis and periodontitis were 83.3%, 36.7% respectively, while those periodontal indices of control group were 49.5%, 50% and 16.7%. After statistical analysis, the CPC group had significantly higher effective rates on gingivitis than the hibitane group (P < 0.01), at the same time, the effective rate was significantly different between two groups on periodontitis (P < 0.05). CONCLUSION The use of 0.1% CPC rinse is effective in treating periodontal diseases.
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Affiliation(s)
- Chun-zhen Hu
- Department of Oral Medicine, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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Hu CZ, Liu GL, Li DY, Xu PY, Wang J, Zhao JJ, Zhang B, Ye J. [Juvenile periodontitis survey in 9548 middle school students at Huangpu District in Shanghai]. Shanghai Kou Qiang Yi Xue 2002; 11:300-2. [PMID: 14983362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE 9548 middle school students from 11-19 age at Huangpu District in Shanghai were investigated to study the prevalence of juvenile periodontitis(JP). The purpose of the present study was to discover JP at early stage and make correct diagnosis, so the patients can be treated on time. METHODS From January 2001 to April 2001, debris index(DI), calculus index(CI), sulcus bleeding index(SBI) and community periodontal index for treatment needs (CPITN) were examined in each student. RESULTS In 9548 investigated (4739 males and 4809 females), prevalence of JP was 0.76%, the ratio of males to females was 1:1.03 (P<0.05). With aging, the detectable rate of gingival bleeding and calculus was increasing, the prevalence of JP was also increasing. CONCLUSION Since the new classification system of periodontal disease was established, the above cases are worth reevaluating. We should also enhance oral hygiene of the young people.
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Affiliation(s)
- Chun-zhen Hu
- Department of Oral Medicine, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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Liu TC, Lin SF, Yang TY, Perng LI, Jaung SJ, Hu CZ, Chang JG. Molecular basis of Lewis blood type in Taiwanese. Kaohsiung J Med Sci 2000; 16:552-8. [PMID: 11294061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
The Lewis (Le) histo-blood group system comprises two major antigens, Le(a) and Le(b) which are determined by alpha (1,2)-fucosyltransferase (FUT2) and alpha (1,3/1,4)-fucosyltransferase (FUT3). In this study, we analyzed the mutations of FUT2 and FUT3 genes in 101 Taiwanese by molecular biology method and compared them with their serologic phenotypes to explore their relationship. There is at least one wild allele of FUT2 and FUT3 genes in phenotype of Le (a-b+). The phenotypes of Le (a+b-) and Le (a+b+) are caused by mutations of both alleles of FUT2 gene and at least one wild allele of FUT3 gene. The genotypes of Le (a+b-) and Le (a+b+) are the same. Twenty cases are phenotype of Le (a-b-), which are caused by mutations of both alleles of FUT 2 gene and/or FUT 3 gene. Twelve cases were caused by both alleles mutations of FUT 3 gene only, while three cases were caused by mutations of both alleles of FUT2 gene and the rest of the cases were caused by mutations of both alleles of FUT2 and FUT3 genes. Our findings confirm that the Le histo-blood group is determined by the interaction of FUT 2 and FUT 3 genes. Our report is the first study of FUT 2 gene and FUT 3 gene in a Taiwanese population. We suggest that the genetic analysis of Le blood group should include FUT 2 and FUT 3 genes together.
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Affiliation(s)
- T C Liu
- Division of Hematology/Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
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Bu SS, Li JR, Hu CZ, Zhao YF. The influence of exogenous nerve growth factor on inferior alveolar nerve regeneration in silicone tubes. Chin J Dent Res 1999; 2:44-8. [PMID: 10863416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVE To explore the effects of exogenous nerve growth factor (NGF) in the regeneration of adult white rabbit inferior alveolar nerves within silicone tubes. METHODS Twenty-four adult white rabbits were selected. Bilateral 8 mm inferior alveolar nerve gaps were created, and the proximal and distal stumps were inserted into a 12 mm silicone tube. The right side silicone tube was filled with exogenous NGF (experimental group) and the contralateral side was filled with saline (control group). Regeneration of the nerves was assessed by histological and nerve eletrophysiological observation. Total number of the regenerated myelinated fibers, conduction velocity of the nerves, thickness of myelin sheaths, and cross-section area of myelinated nerve fibers between the experimental and control groups were compared. RESULTS The results show that NGF significantly increased the number of myelinated fibers. The experimental group demonstrated more myelinated fibers than the controls at 12 and 18 weeks. At the same time following surgery, the myelin sheath thickness and the cross-section area of myelinated fibers in the experimental group were significantly greater than those in the controls. At 12 and 18 weeks, the conduction velocity of regenerated nerves in the experimental group were greater than those of the control. CONCLUSION This study suggests that exogenous NGF can enhance regeneration of the inferior alveolar nerves and recovery of their sensory function.
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Affiliation(s)
- S S Bu
- Department of Stomatology, First Affiliated Hospital of Nanjing Medical University, P. R. China
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Hu CZ, Guo JJ, Yang YZ, Wang B, Tao Q, Zhou XY. [Investigation and analysis of pregnancy gingivitis in 700 pregnancy women]. Shanghai Kou Qiang Yi Xue 1999; 8:15-7. [PMID: 15048307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: To investigate the relation between the incidence of pregnancy gingivitis and pregnancy period as well as oral hygiene of pregnancy women. METHODS: From January 1995 to April 1996,700 pregnancy women were inquired and examinated clinically. RESULTS: The incidence of pregnancy gingivitis is 73.57%,of which,the incidence during the first trimester is 67.49%,the second 74.19% and the third,79.17%.The incidence of pregnancy epulis is 0.43%. CONCLUSION: The incidence of pregnancy gingivitis was increasing following the pregnancy month and sexual hormone.It was important of pregnancy women to consulting about oral hygiene.
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Affiliation(s)
- C Z Hu
- Department of Oral Medicine,School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China
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Gu JJ, Hu CZ, Wang B. [The clinical observation of tetracycline stained teeth covered by composite resin veneer induced of secondary gingivitis]. Shanghai Kou Qiang Yi Xue 1995; 4:28-9. [PMID: 15160105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Using gingival index,sulcus bleeding index and plaque index of 765 tetracycline stained teeth covered by composite resin veneer after 1/2-3 years were observed.It was found that the incidence of gingivitis was over 60%.The reexamination after three months later showed that the three indexes were significantly improved by grinding teeth proper and teaching standard brushing method.
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Affiliation(s)
- J J Gu
- Department of Oral Medicine,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Wang XL, Zhu SR, Chen XM, Hu CZ. [The clinical observation of 247 tuberculosis cases in Oral Maxillofacial region]. Shanghai Kou Qiang Yi Xue 1993; 2:134-5. [PMID: 15159822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
This paper presents a report of clinical observation on tuberculosis of oral and maxillofacial region in 247 patients.Of these which diagnosed by histopathology.94 cases are from mucous membrane of oral cavity,108 subjects from lymph nodes,27 ones from parotid gland,15 persons from facial dermis and 3 from jaw.Among 247 patients.154 cases were male and 93 female.The youngest was 2 years old and the eldest one was 71 of age and the mean age was 32 years old.The shortest course of disease was 15 days and the longest was 30 years,the mean course of time was two and half years.The rate of clinical diagnosis accord with pathology was 41.3%,most error diagnosis were to suspect inflammation,tumors and ulcer.In addition,the etiology,the clinical manifestion,diagnosis and therapies of oral and maxillofacial tuberculosis were analyzed.
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Affiliation(s)
- X L Wang
- Department of Oral and Maxillofacial Surgery,Affiliated Hospital of Stomatology,Hubei Medical College. Wuhan 430070,China
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Abstract
From January 1963 to December 1989, 1585 consecutive cases of retinal detachment were operated with homologous skin as buckling material, the rate of operative success being 91.6%. Human skin is easy to obtain, sterilize and preserve; because of its appropriate thickness and firm but elastic consistency it satisfactorily meets the need to produce sufficient height and to maintain necessary duration of the scleral buckling; in addition to a high rate of reattachment, homologous skin implantation was well tolerated, very rarely rejected (0.06%) and infected (0.25%), and no late complications occurred. Therefore, the authors prefer using human skin as buckling agent rather than conventional synthetic material, e.g., silicon sponge etc.
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Affiliation(s)
- S Q Zeng
- Abteilung für Augenheilkunde, Xiehe Hospital, Tongji Medizinische Universität, Wuhan
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Zeng SQ, Hu CZ, Li JP, Wei HR, Lu YS, Wu ZB, Wang HJ. A consecutive ultrastructural study of action of homoharringtonine on fibroblasts in vitro. Ann Ophthalmol 1991; 23:337-41. [PMID: 1741606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The authors studied the effect of homoharringtonine (Hh), a semisynthetic Chinese herb, on the ultrastructure of in vitro cultured human conjunctival fibroblasts (HFb) and its mechanism of action. Preliminary results showed that the main characteristics of HFb damage caused by Hh were invagination of the nuclear membrane, aggregation and margination of chromatin, and massive vacuolization of the cytoplasm. In addition, Hh can inhibit the secretion of collagen fibers and the synthesis of microfilaments. Therefore, Hh might be an effective agent in the prevention and treatment of proliferative eye disorders.
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Affiliation(s)
- S Q Zeng
- Department of Ophthalmology, Union Hospital, Tongji Medical University, Wuhan, People's Republic of China
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Hu CZ, Yoch DC. Complementation of a pleiotropic Nif-Gln regulatory mutant of Rhodospirillum rubrum by a previously unrecognized Azotobacter vinelandii regulatory locus. Arch Microbiol 1990; 154:528-35. [PMID: 1980582 DOI: 10.1007/bf00248832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A spontaneous pleiotropic Nif- mutation in Rhodospirillum rubrum has been partially characterized biochemically and by complementation analysis with recombinant plasmids carrying Azotobacter vinelandii DNA in the vicinity of ORF12 [Jacobson et al. (1989) J. Bacteriol 171: 1017-1027]. In addition to being unable to grow on N2 as a nitrogen source the phenotypic characterization of this and other metronidazole enriched spontaneous mutants showed (a) no nitrogenase activity, (b) the absence of NifHDK polypeptides, (c) a slower growth rate on NH4+, (d) approximately 50% higher glutamine synthetase (GS) activity than the wild-type, which was repressible, (e) an inability to switch-off GS activity in response to an NH4+ up-shift, and (f) an inability to modify (32P-label) the GS polypeptide. The apparent relationship between the absence of nifHDK expression and the absence of GS adenylylation cannot be explained in terms of the current model for nif gene regulation. However, R. rubrum transconjugants receiving A. vinelandii DNA which originated immediately upstream from nifH, restored all aspects of the wild-type phenotype. These data suggest a here-to-fore unrecognized relationship between nif expression and GS switch-off (adenylylation) activity, and the existence of a previously unidentified regulatory locus in Azotobacter that complements this mutation.
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Affiliation(s)
- C Z Hu
- Department of Biological Sciences, University of South Carolina, Columbia 29208
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Hu CZ, Huang CR, Rong S, Zhang W, Wu J, Pilot T. Periodontal conditions in elderly people of Shanghai, People's Republic of China, in 1986. Community Dent Health 1990; 7:69-71. [PMID: 2357610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In a stratified multi-stage random sample, 1600 persons of 60 years and older in Shanghai, People's Republic of China, were investigated for periodontal conditions using the CPITN method. Periodontal conditions seemed to deteriorate steadily but rather slowly with increasing age. In the older age groups, there was a trend for an increased proportion of both subjects and sextants scoring CPITN code 4 (deep pockets). The increase in tooth loss with increasing age was more clearly visible: increasing percentages of edentulousness and decreasing mean numbers of teeth remaining in dentate subjects.
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Affiliation(s)
- C Z Hu
- Shanghai Research Institute of Stomatology, P.R. China
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Abstract
We present images of amino acids adsorbed on highly orientated pyrolytic graphite (HOPG) obtained with the scanning tunnelling microscope (STM) in air. Individual molecules can be observed although the majority of adsorbates appear to form clusters. In the case of leucine, methionine, and tryptophan, two molecules often associate together to form a dimer. Single or dimer glycine molecules were not seen, but a cluster of a number of them was observed. The various adsorbed states may be related to the different interactions between the amino acids and the graphite surface. The mechanism of image formation of the amino acids is probably related to charge transfer mechanisms.
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Affiliation(s)
- L Feng
- Department of Bioengineering, University of Utah, Salt Lake 84112
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Li JP, Hu CZ, Zeng SQ, Ren JM, Wei HR. Inhibition of intraocular proliferation by homoharringtonine. An experimental study. Graefes Arch Clin Exp Ophthalmol 1988; 226:367-70. [PMID: 3169589 DOI: 10.1007/bf02172969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Homoharringtonine, an alkaloid indigenous to China, was studied for its effect on fibroblast growth in cell culture and on intraocular proliferation produced in rabbits by injecting homologous fibroblasts into the vitreous. The results demonstrate that homoharringtonine reduced the cell growth by 50% at a concentration of 0.005 mg/l in vitro, significantly inhibited vitreous proliferation, and prevented the occurrence of retinal detachment in vivo. Light and electron microscopy revealed no ocular toxicity in drug-treated eyes. Homoharringtonine may be of considerable value in the prevention and treatment of intraocular proliferation in patients.
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Affiliation(s)
- J P Li
- Department of Ophthalmology, Union Hospital, Tongji Medical University, Wuhan, People's Republic of China
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Yoch DC, Li JD, Hu CZ, Scholin C. Ammonia switch-off of nitrogenase from Rhodobacter sphaeroides and Methylosinus trichosporium: no evidence for Fe protein modification. Arch Microbiol 1988; 150:1-5. [PMID: 3136733 DOI: 10.1007/bf00409708] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In vivo switch-off of nitrogenase activity by NH4+ is a reversible process in Rhodobacter sphaeroides and Methylosinus trichosporium OB3b. The same pattern of switch-off in Rhodospirillum rubrum is explained by ADP-ribosylation of one of the Fe protein subunits, however, no evidence of covalent modification could be found in the subunits from either R. sphaeroides or M. trichosporium. Fe protein subunits from these organisms showed no variant behaviour on SDS-PAGE, nor were they 32P-labeled following switch-off. These observations suggest either that the attachment of the modifying group to the Fe protein in these organisms is quite labile and does not survive in vitro manipulation, or that the mechanism of switch-off is different than that seen in Rhodospirillum.
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Affiliation(s)
- D C Yoch
- Department of Biology, University of South Carolina, Columbia 29208
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Li JD, Hu CZ, Yoch DC. Changes in amino acid and nucleotide pools of Rhodospirillum rubrum during switch-off of nitrogenase activity initiated by NH4+ or darkness. J Bacteriol 1987; 169:231-7. [PMID: 2878918 PMCID: PMC211758 DOI: 10.1128/jb.169.1.231-237.1987] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Amino acid and nucleotide pools were measured in nitrogenase-containing Rhodospirillum rubrum cultures during NH4+- or dark-induced inactivation (switch-off) of the Fe protein. A big increase in the glutamine pool size preceded NH4+ switch-off of nitrogenase activity, but the glutamine pool remained unchanged during dark switch-off. Furthermore, methionine sulfoximine had no effect on the rate of dark switch-off, suggesting that glutamine plays no role in this process. In the absence of NH4+ azaserine, an inhibitor of glutamate synthate, raised glutamine pool levels sufficiently to initiate switch-off in vivo. While added NH4+ substantially increased the size of the nucleotide pools in N-limited cells, the kinetics of nucleotide synthesis were all similar and followed (rather than preceded) Fe protein inactivation. Darkness had little effect on nucleotide pool sizes. Glutamate pool sizes were also found to be important in NH4+ switch-off because of the role of this molecule as a glutamine precursor. Much of the diversity reported in the observations on NH4+ switch-off appears to be due to variations in glutamate pool sizes prior to the NH4+ shock. The nitrogen nutritional background is an important factor in determining whether darkness initiates nitrogenase switch-off; however, no link has yet been established between this and NH4+ (glutamine) switch-off.
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Hu CZ. [Orbital meningioma]. Zhonghua Yan Ke Za Zhi 1986; 22:198-200. [PMID: 3096663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Hu CZ. [Effect of corticosteroid on sympathetic ophthalmia in perforating eye injuries]. Zhonghua Yan Ke Za Zhi 1985; 21:82-4. [PMID: 3922709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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